Galdino della Sala (c. 1096 – 18 April 1176), Galdinus or Galdimus (Milanese: Galdin), was a Roman Catholic saint from Milan in northern Italy.

Pope Alexander III was the Roman candidate, while Antipope Victor IV was supported by Frederick Barbarossa and his cardinals.

When Alexander returned to the papacy in 1165, he named Galdino in the consistory of 15 December as the Cardinal Priest of the titular church of Santa Sabina, and a year later made him the Archbishop of Milan.

He consecrated new bishops at Lodi, Alba, Cremona, Vercelli, Asti, Turin, Novara, Brescia, and Alessandria.

On 18 April 1176 Galdino della Sala died in his pulpit, having just completed a sermon against the Cathars, who were seen by orthodox Catholics as heretics.